PHYSICS EQUATIONS Flashcards by Sabooh Ahmed

Q

density

A

mass/volume

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Q

distance

A

speed x time

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Q

acceleration

A

Change in velocity / time

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Q

kinetic energy

A

0.5 x mass x speed^2

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Q

force

A

mass x acceleration

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Q

momentum

A

mass x velocity

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Q

work done

A

force x distance

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Q

power

A

work done / time

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Q

force exerted by spring

A

extension x spring contstant

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Q

gravity force

A

mass x gravitational field strength

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Q

potential energy

A

mass x height x gravitational field strength

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Q

pressure

A

force / area

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Q

moment of a force

A

force x distance

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Q

charge flow

A

current x time

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Q

potential difference

A

current x resistance

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Q

energy transferred

A

charge x potential difference

Q

power

A

V x I

Or

I^2 x R

Q

energy transferred

A

power x time

Q

wave speed

A

frequency x wavelength

Q

efficiency

A

useful output energy / input energy

Q

Change in thermal energy

A

mass x specific heat capacity x change in temp

Q

thermal energy for change in state

A

mass x specific latent heat

Q

constant

A

pressure x volume = constant

Q

pressure in a column of liquid

A

height of column x density x gravitational potential energy

acceleration

v-u / t

suvat

v^2 - u^2 / 2as

energy in stretching

0.5 x spring constant x extension^2

force on wire

magnetic flux density x current x length of wire F = BIL

potential difference and turns in a coil

V in PC / V in SC = Turns in PC / Turns in SC

potential difference and current in coil

V x I in PC = V x I in SC